Qt Design Studio is a UI design and development environment that enables designers and developers to rapidly prototype and develop complex and scalable UIs.

Qt Design Studio is a tool used by both designers and developers and that makes collaboration between the two a lot simpler and more streamlined: Designers can look the graphical view, while developers can look at the QML code. With this workflow, designers can have their Photoshop designs running on real devices in minutes! As an aside, I say Photoshop designs, but we are planning to support other graphic design tools in the future.